20.500.12556/DKUM-39213 Laboratorijska naprava za preverjanje in nastavitve homogenosti senzorja MIMOSA-26 Device for checking and adjusting the homogenity of MIMOSA-26 sensors Na odseku Eksperimentalne fizike osnovnih delcev na Inštitutu Jožefa Stefana razvijajo žarkovni teleskop. Naloga žarkovnega teleskopa je, da lahko vanj vstavimo neki novi senzor, katerega lastnosti so nam tuje. Po meritvah se preveri podatke žarkovnega teleskopa ter podatke novega senzorja. S primerjavo podatkov žarkovnega teleskopa in novega senzorja lahko novemu senzorju določimo lastnosti, kakor so natančnost, ločljivost in občutljivost. Žarkovni teleskop je sestavljen iz šestih MIMOSA-26 senzorjev. Bolj natančna, kot je homogenost senzorjev MIMOSA-26, bolj natančne so meritve in natančneje lahko poznamo karakteristike novega senzorja. Samo napravo sem najprej zmodeliral v programu SolidWorks in jo izdelal s pomočjo zaposlenih na oddelku eksperimentalne fizike osnovnih delcev. Naprava deluje na tak način, da se na stojalo vstavi senzor MIMOSA-26. Stojalo je pritrjeno na XY mizico, ki jo je možno premikati v dve dimenziji (x, y) na 0,01 mm natančno. Nad senzorjem je v kolimator nameščen radioaktivni vir Stroncij-90, ki seva beta delce (elektrone). Pod samim senzorjem je nameščena fotopomnoževalka, katere namen je, da služi kot prožilec, kadar skozi scintilator gredo elektroni. Senzor MIMOSA-26 se med samim sevanjem pomika in računalnik zajame podatke. Program ROOT podatke obdela ter izriše grafe, ki nam pokažejo homogenost senzorjev. Pri samih meritvah je treba nastaviti senzorjem MIMOSA-26 še pragovno napetost in masko, ki zamaskira nedelujoče slikovne elemente. The department of experimental physics at the Institute Jozef Stefan developed a beam telescope. The task of the beam telescope is to fit into the new sensor, which properties are unknown. After measurements, informations of the beam telescope and the new sensor are verified. By comparing the data of the beam telescope and a new sensor, the sensor determine new caracteristics such as accuracy, resolution and sensitivity. Beam telescope consists of six MIMOSA-26 sensors. More accurate homogenity and measurements of MIMOSA-26 sensors are, more accurate and more precise we know the characteristics of the new sensor. I first modeled the device in the program called SolidWorks and made the device with employees at the department of experimental physics. The device works in such a way that the sensor MIMOSA-26 is inserted in the stand. The stand is mounted on an XY table, which can move in two dimensions. Accuracy of the device is 0,01 mm. Above the sensor is the collimator in which radioactive source Strontium-90 is installed. Strontium-90 emitts beta particles. Beneath the sensor is installed photomultiplier tube which purpose is to serve as a trigger, when beta particles pass scintilator. MIMOSA-26 sensor is moved during radiation while computer capture the data. ROOT program process the data, and plott graphs, which show us the homogenity of the sensors. Before the actual measurements, it is necessary to adjust thresholds of MIMOSA-26 sensors and masks the pixels which don't work, also called hot chanels. MIMOSA-26 žarkovni teleskop senzor detektor preverjanje homogenosti delci MIMOSA-26 beam telescope sensor detector particles true true false [T. Fidler] Slovenski jezik Angleški jezik Diplomsko delo 2012-12-11 11:07:14 2012-12-18 14:36:15 2022-05-04 14:12:48 2021-04-21 03:15:34 2012 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 53(043.2) 19569416 URN:SI:UM:DK:BX3REDEZ UNI_Fidler_Tilen_2012.pdf UNI_Fidler_Tilen_2012.pdf 1 7CAF2D025A44661F0FB3DAAB50688891 007de4bc23226a77c212ce57cd88db5b9dc66421c9c55061a71f1d024c3218fa a5ba0a7c-7c08-11eb-bb7a-00155d0001ca 20.500.12556/dkum/16059f22-8afb-4625-aef0-7ecbd64f44e3 https://dk.um.si/Dokument.php?lang=slv&id=52857 Fakulteta za naravoslovje in matematiko 0 0 0